Perhaps you should try some spelling variations:
"het international seminar prize" » "het international women's prize" (Expand Search), "het international solidarity prize" (Expand Search), "het internationaal seminar prize" (Expand Search), "de international seminar prize" (Expand Search), "et internationale seminar prize" (Expand Search)
"en internationale de prize" » "de internationale de prize" (Expand Search), "_ international de prize" (Expand Search), "het internationaal de prize" (Expand Search), "en internationale des prize" (Expand Search), "en international de prize" (Expand Search), "en internationale de prijzen" (Expand Search), "en internationale de prince" (Expand Search), "en internationale de prijs" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("en internationale de prize") OR ("het international seminar prize"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"en internationale de prize\") OR (\"het international seminar prize\"))*".
• Removing quotes may allow a broader search: (( en internationale de prize ) OR ( het international seminar prize ))*.